Attachment for embroidering-machines



H. L. OCHSNER.

ATTACHMENT FOR EMBROIDERING MACHINES.

APPLICATION FILED SEPT. 18. I919- Patented Nov. 16, 1920.

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ATTACHMENT FOR EMBROIDERING MACHINES.

APPLICATION FILED SEPT. 18. 1919.

1,358,979, Patented Nov. 16, 1920.

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HANS L. OCHSNER, OF NEW YORK, N. Y.

ATTACHMENT FOR EMBROIDERING-MAGY-IINES.

Specification of Letters Patent.

Patented Nov. 16, 1920.

Application filed September 18, 1919. Serial No. 324,490.

T 0 all whom it may concern:

Be it known that I, HANs L. OoHsNER, a citizen of the Swiss Republic, (who has declared his intention to become a citizen of the United States,) residin in the city of New York, in the State of Flew York, have invented certain new and useful Improvements in Attachments for Embroidering- Machines, of which the following is a specification, reference being had to the accompanying drawings, forming a part hereof.

This invention relates to an attachment for Swiss or shuttle embroidering machines to permit the support of vertical strips of cloth for the embroidering of towels, table scarfs or other pieces of that sort.

In embroidering machines a web of cloth is usually stretched lengthwise on the work frame and the frame is then given a movement, in a vertical plane, in front of the needles, in accordance with a pattern, which pattern is reproduced on the fabric by the threads carried by the needles, each needle forming a unit of the pattern. In the embroidering of vertical strips of cloth of lesser width than the width of the frame, it has been the usual practice to stitch the vertical strips together along their vertical edges andrthen wind them on the rollers in the usual manner, side tension devices being employed for holding the Work taut. The embroidery is carried across the meeting edges and after the embroidering is completed the strips are cut apart and the embroidery is also vcut. This operation involves considerable work and has the further disadvantage that the patterns adjacent the opposite edges of the vertical strips, when out, are usually not symmetrical with relation to the edges.

In accordance with the present invention a simple and inexpensive attachment is provided which may be readily secured to the work frame and will serve to support ver-' tical strips of any width in proper position for embroidering and hold themtaut, one or more strips, when thus being embroidered,

being supported and wound on the usual rollers after each pattern is completed.

The invention will be described in detail in connection with the illustrated embodiments in the drawings, in which "e l is view in vertical section taken i. so ninth of a double frame em broidering machine as is necessary for an understanding of the application of the attachment thereto.

Fig. 2 is a view in front elevation of a work frame showing the application of the attachment thereto, several strips of cloth being indicated in their relation to the frame and the attachment.

F ig. 3 is a front view of a suitable clip for supporting a strip of cloth.

Fig. l is a view in section taken through the clip shown in Fig. 3.

Figs. 5 and 6 are views in section of other forms of clips which are suitable for the purpose.

Fi s. 7, Sand 9 are views in elevation, transverse section and. horizontal section, respectively, of the preferred form of clip for the attachment.

The double frame a is supported to move in a vertical plane before sets of needles 6, each one of which, during the operation of the machine, serves to form a unit of a pattern in accordance with which the frame is moved in a manner well known. Upper and lower pairs of rollers 0, (Z, respectively, are supported in the frame a to receive the fabric, side tension members (not illustrated) being carried at opposite sides of the frame to hold the fabric taut when a single web is supported on the rollers, as is usually the case. In accordance with the present improvements there are detachably secured to the vertical end members a of the frame a, between the rollers 0 of the upper pair, and between the rollers cl of the lower pair (in the case of a double frame machine), two light steel straps 6 carried by bolts 7 at their ends, which bolts pass through the usual holes in the vertical side members of the frame and are provided with thumb nuts 7" outside so fillilbtle straps can be adjusted accurately to position and stretched tightly. The straps e are provided with holes or slots 6, usually one inch apart, which is the usual spacing (singly or in multiple) of the needles. On the bands 6 are supported detachably and in adjusted positions clips 9 which engage the edges of the toweling or other strip fabric, indicated at h. The bands 6 are flexible for convenience in shipping, storing and handling.

The clips 9, it will be appreciated, may many different but several con venient embodiments are illustrated in detail in Figs. 39. In the form shown in Figs. 3 and 4, the clip comprises a plate 2'- which carries a stud z" and prongs 2' these prongs being so spaced-as to pass through the holes or slots 6 in the steel band 6. The stud 2" also passes through the band 6 and carries an adjustable milled nut 70 at its front end, this nut being operativly disposed with relation to a flat spring Z, the ends of which bear against the front face of the band 6.

In the form of clip shown in Fig. 5 a plate m is provided with prongs m" which pass through the slots 6 of the band a and this plate receives a stud n which passes through the band 6 from the front face thereof'and has secured at its front end a leaf spring 0 the ends of which bear against the band- The tension of the spring 0 may be regulated by an adjustable nut 2.) threaded on therear end of the stud a and this nut serves to secure the plate on in operative relation to the band, to receive the cloth as will appear hereinafter;

The clip shown in Fig. 6 is exactly. like that shown in Fig. 4, except that a spiral spring q is interposed operatively between the nut 70' and the band 6.

The preferred form of clip is shown in Figs. 7 to 9. In this construction the plate I- carries a stud I which may pass through one of the holes or slots 6 in the band 6 and the plate is of such length as to span two adjacent holes or slots 0 through which pass prongs I on the face of the plate. The outer endof the stud I is formed with an undercut head i which slides in an undercut channel K formed in the underface of the clamping member K. Aleaf spring L is engaged operatively by the head K and its ends bear against the front face of the band 6.

In applying the attachment to a frame such as a the usual side tensionmembers are removed and the bands 0 secured in position by passing the bolts f through the holes in the vertical side frame members a of the frame and securing them by the wing nuts 7'. By means of these wing nuts. 7" the bands 6 are adjustedlaterally until one of theholes or slots 6', say the end hole or slot. is brought in alinement with one of the needles 5. The fabric strip or strips h on the rollers 0, (Z are now clipped at the vertical edges-to hold them taut in proper relation to the needles 5. In clipping the strip or strips a clip 9 is attached to one of the bands 6 by passing the stud I (where the preferred form of clip is used) through the'nearest' exposed hole-or slot 0' to the edge of the fabric whereupon one of the prongs or sets of prongs i will pass through the, fabric and the registering hole or slot e and be held in position upon engagement of the head K with the undercut end of the stud I, the spring L being placed under compression. Other clips may then be placed on the band in proper relation to the edges of the strip. WVhere a series of strips are to be embroidered, as indicated in Fig. 2, it will be evident that by reason of the duplication of the prongs on the clips each clip may engage the proximate edges of two strips of fabric.

lVhile the method of applying the clips has been described as though the clips were positioned after the fabric is in place, a matter of fact, the clips will usually be placed on theband and then manipulated to bring the prongs into engagement with the edges of the cloth. This manner of en gagement will be clear from the horizontal sectional detail views in Figs. e, 5, 6 and 9, from which'it should be clear that by exerting pressure with the hands on the exposed ends of the studs 2', n and I", the coeperating-springs will be compressed and the plates 2', m andI forced away from the rear face of the bands 6 permitting the edges of the cloth to be drawn under the plates, whereupon release of the spring will serve to draw the prongs of the respective plates through the cloth. In the reverse manner it will be clear that the clips may be disengaged from the cloth to permit the cloth to be removed or wound on to the receiving roller of the pairs of rollers 0, (Z

The form of clip shown in Figs. 79 is, perhaps, the most advantageous since the stud I, which may be of elongated cross section, may be passed through any one of the holes or'slots e of the-band e and the prongs on the plate I will be brought into proper registry with the adjacent holes or slots. Further, the detachable head K is of simple construction and may be readily disengaged from the undercut head I? of the stud I bysliding the two parts relatively. In the other forms of clips it will usually be desirable to provide special openings in the band e-to receive the studs 2", a,

on the plates '5, m.

When the bands e are properly adjusted with relation to the needles it will be evident that all of the embroidered units on .the fabric will be symmetrical with relation to one another and with relation to the opposite side edges of the vertical strips. After a strip has been completely embroidered, it is removed from the receiving roller and cut to' length. Otherwise,,no hand work is requiredand no cutting of the embroidery. itself is necessary.

As noted before, changes in the form ofclips willsuggest themselvesto those skilled in the art, and other changes adapting the attachment toother types of machines than that illustrated may be made, but'all such obvious modifications are to be deemed within the scope of the invention provided they fall within the terms of the appended claims.

I claim as my invention:

1. An attachment for embroidering machines comprising bands, means for securing each band independently at its ends to the work frame of the machine and clips supported directly on the bands for engagement with the edges of strips of fabric.

2. In combination with the work frame and fabric rollers of an embroidering machine, an attachment comprising bands, means for securing the bands to the work frame and clips supported on the bands and adapted to engage the edges of strips of fabric carried on the rollers.

3. In combination with the work frame and fabric rollers of an embroidering machine, an attachment comprising bands, means for securing the bands adjustably to the vertical end members of the frame and spring clips supported adjustably on the bands and adapted to engage the fabric.

4. In combination with the work frame and fabric rollers of an embroidering machine, an attachment comprising bands provided with holes, means for securing the bands adjustably to the vertical end members of the frame, and spring clips supported adjustably on the bands and having devices to enter the holes in the bands and engage the fabric.

5. In an attachment for embroidering machines in combination with a supporting band provided with holes, a spring clip comprising a plate formed with prongs to enter holes of the band and engage the fabric, a stud on the plate passing through the band, a clamping member engaging the end of the stud, and a spring in operative relation to the clamping member and confined between said member and the band.

This specification signed this 12th day of September, A. D. 1919.

HANS L. OCHSNER. 

